Flat griddle



FIG. 1 is a front perspective view of a flat griddle, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a rear perspective view thereof; and,

FIG. 9 is a partial enlargement of FIG. 1 .

The dashed broken lines illustrate portions of the flat griddle that form no part of the claimed design. The dot-dashed broken lines depict reference to the enlargements within the drawings and show the boundary of the enlarged view and form no part of the claimed design. 

CLAIM The ornamental design for a flat griddle, as shown and described. 